... output, BTL integration, HI - FI effect.3 Big power, bass vigorous forceful, high-pitched sound4 With sound volume, ... 4.0channelShell qualitative material: AluminumColor:BlackVoltage:12VOut Power:45Wx4Dimention:19cmx14cmx6cmOutput Impedance:2-8 ohmSNR:>95dBADistortion degree:0.05%Frequency ... for worldwideshipping.4)Shipment will be arranged within 2 business days after payment. No shipment can be ...